AndyR
ArboristSite Operative
Saw this today and thought someone here might be able to take advantage...It just isn't what I need right now.
Good luck
Andy
Good luck
Andy
Craigslist Mac cp 125
- Thread starter AndyR
- Start date
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AndyR
ArboristSite Operative
That's a terrific buy if that's a true CP-125. They're a far more desirable saw.
BIGBORE577
Addicted to ArboristSite
Saw this today and thought someone here might be able to take advantage...It just isn't what I need right now.
Good luck
Andy
Andy,
Thanks for the heads up, it's 30 minutes away. I pick it up in the morning!
AndyR
ArboristSite Operative
Looks like its going somewhere where it will be well appreciated.
Be sure to put a few pics up!
Andy
Be sure to put a few pics up!
Andy
BIGBORE577
Addicted to ArboristSite
Sweet deal! Looks like it'll be right at home in your stable.
BIGBORE577
Addicted to ArboristSite
Thanks! The other Mac's were feeling out numbered. A big brother will help.
Those German saws can be bullies.
BIGBORE577
Addicted to ArboristSite
I picked it up this A.M. Great shape, one pull start and runs like a champ.The guy has had it over 30 years and kinda got choked up when handing it over. He had to "hear it run one more time"! I'll try to take some pictures soon. A "Big Thanks" to AndyR for the heads up.
Nice! those are fantastic saws.
AndyR
ArboristSite Operative
That's cool.
I was, at first, considering going to get it myself. It's about 5-6 hours roundtrip (usually Sh*tty traffic) for me and with the amount of work and expense I'm looking at to get the used milling equipment that I have up and running (Ripsaw and old beater 066), I figured I better let it go.
Glad to hear it worked out. Like I said before, sounds like you are a good home for it.
Pics man! we need pics!
Andy
I was, at first, considering going to get it myself. It's about 5-6 hours roundtrip (usually Sh*tty traffic) for me and with the amount of work and expense I'm looking at to get the used milling equipment that I have up and running (Ripsaw and old beater 066), I figured I better let it go.
Glad to hear it worked out. Like I said before, sounds like you are a good home for it.
Pics man! we need pics!
Andy
huskydave
Addicted to ArboristSite
That a deal and a half. I would have bought it in an instant for that price.
Brownpot Deaton
ArboristSite Operative
poor guy. that's one of things where you tear up telling stories about her(from his point of view)....but atleast she's being taken care of.
Bill G
ArboristSite King
24d said:
Larry- The CP-125 is a true 'super series' Mac engine much like the kart engine counterparts except that it has the integral head. The CP 125 engines have a bridged exhaust, steel-sleeved cylinder, and use the horizontal-legged coil that is the same on all the super series kart engines. Some of the CPs had thick-ring pistons, most had thin-rings. The pistons looked very much like a 101 piston with windows and used the 1/2" wrist pin with captured needle roller wrist pin bearings in the piston.
The SP-125 has an open exhaust, some had steel-sleeved cylinders, and a thin-ring piston that used the 9/16" wrist pin with loose needle bearings for the wrist pin held in the small end of the rod. The thinking for this was lateral stability at higher engine speeds. The coil was the diagonal legged coil same as on the 7-10, 10-10, Super Pro 80/81, etc.
The SP-125c had a chrome cylinder from the factory. Same coil and piston set-up.
Mac made up to .030" over pistons for the CP-125 and SP-125 that I know of.
I still have both of the original CP-125 saws that my dad purchased brand new in 1968 with the original receipts for both. One was later hot-rodded by the local Mac dealer (which is actually the same saw shop I now work for part-time) and that saw was eventually bored .030" over and the biggest factory piston fitted.
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AndyR
ArboristSite Operative
I'm in Champaign.
The frames are the same. I wouldn't necessarily say that one or the other is a better performance motor, it depends highly on what you want to do with them. If you're looking for a hotrod for hotsaws competitions and to wow your friends at get-togethers, then the answer is easy. Don't even bother building up one of the saw motors, just throw a kart engine in your chainsaw chassis.
Now if you want an everyday, solid falling and bucking saw then my choice would actually be the SP-125 or SP-125c. They can rev a little higher and be more dependable. One thing to keep in mind that I didn't mention is that the CP motors usually have a bigger compression chamber, so you'll get slightly less compression than in the SP motors. Some of the early SP motors have a larger CC though. There were a lot of undocumented production changes back then so sometimes you really don't know what you've got until you tear into it.
The CP motor would be a better milling saw, because of the bridged exhaust and large CC. The SPs do fine milling too.
Now if you want an everyday, solid falling and bucking saw then my choice would actually be the SP-125 or SP-125c. They can rev a little higher and be more dependable. One thing to keep in mind that I didn't mention is that the CP motors usually have a bigger compression chamber, so you'll get slightly less compression than in the SP motors. Some of the early SP motors have a larger CC though. There were a lot of undocumented production changes back then so sometimes you really don't know what you've got until you tear into it.
The CP motor would be a better milling saw, because of the bridged exhaust and large CC. The SPs do fine milling too.
